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david-ck
Calcite | Level 5

For mutation typeB, how to compare the effect of typeB during the first year (days<365) and the effect after the first year (days>365)? What statistical test for it?

Days      Number of days from diagnosis until death or last follow-up

Status    (1 if died; =0 if right-censored)

TypeB    (1 if genetic mutation B,0 if no genetic mutation B)

 

Obs

Days

Status

TypeB

1

88

0

0

2

202

0

0

3

25

1

0

4

335

0

0

5

372

0

0

6

394

0

0

7

859

1

1

8

183

0

0

9

14

1

1

10

1471

0

1

11

47

0

0

12

302

1

1

13

667

1

1

14

468

1

1

15

444

0

0

16

501

1

1

17

750

1

0

18

120

1

0

19

268

1

1

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

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